Talent badge filter
Skills filter
Select talent location
Select talent time zones
Bosnia and Herzegovina
$25/hr
100%
Job Success
$10K+ earned
Start of list.
End of list.
🎯 Experienced QA Engineer Dedicated to Exceptional Software Quality
With 8 years of hands-on experience, I specialize in delivering seamless user experiences through comprehensive and detail-oriented QA processes.
✅ I thrive in collaborative environments, working closely with cross-functional teams to maintain the highest standards of excellence.
🔍 Leveraging deep expertise in Quality Assurance, I excel at identifying improvement opportunities and implementing effective solutions that enhance product performance and reliability.
🧪 My technical skills cover a wide range of testing methodologies including black box, white box, regression testing, and more.
🔄 I bring a strong understanding of Agile and DevOps principles, allowing me to integrate smoothly into agile development cycles and contribute meaningfully to continuous improvement initiatives.
🚀 Passionate about emerging technologies and QA best practices, I stay current to bring innovative, forward-thinking approaches to every project.
📊 Notable achievements include:
Successfully led QA efforts for a fintech platform serving over 500,000 users.
Reduced post-release bugs by 30% through improved regression testing workflows.
🤝 I’m looking to partner with clients who:
Value quality from the ground up, not just as a final step.
Appreciate proactive communication and team-oriented collaboration.
Are open to continuous improvement and feedback-driven development.
Let’s build something great together — and make sure it’s bug-free. 🐞✨
Almir M.
has worked
.
$17/hr
100%
Job Success
$50K+ earned
Available now
Start of list.
End of list.
Senior QA Engineer | 4 Years Experience in Manual, Automation, and Performance Testing
𝐎𝐯𝐞𝐫 𝐭𝐡𝐞 𝐩𝐚𝐬𝐭 4 𝐲𝐞𝐚𝐫𝐬, 𝐈’𝐯𝐞 𝐡𝐞𝐥𝐩𝐞𝐝 𝐭𝐞𝐚𝐦𝐬 𝐝𝐞𝐥𝐢𝐯𝐞𝐫 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞, 𝐮𝐬𝐞𝐫-𝐟𝐫𝐢𝐞𝐧𝐝𝐥𝐲 𝐚𝐩𝐩𝐬 𝐛𝐲 𝐜𝐚𝐭𝐜𝐡𝐢𝐧𝐠 𝐡𝐚𝐫𝐝-𝐭𝐨-𝐬𝐩𝐨𝐭 𝐛𝐮𝐠𝐬, 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐫𝐨𝐛𝐮𝐬𝐭 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐟𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬, 𝐚𝐧𝐝 𝐢𝐦𝐩𝐫𝐨𝐯𝐢𝐧𝐠 𝐚𝐩𝐩 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐚𝐜𝐫𝐨𝐬𝐬 𝐦𝐮𝐥𝐭𝐢𝐩𝐥𝐞 𝐢𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬.
💼 𝐈𝐧𝐜𝐥𝐮𝐝𝐢𝐧𝐠: • Finance • Healthcare • E-commerce • SaaS • Telecom • Education • Travel and logistics
I enjoy rolling up my sleeves for manual testing to catch those hard-to-spot issues, building automation frameworks with Cypress, and Playwright to help teams move faster, and running performance tests to ensure apps stay smooth even under heavy use.
𝐌𝐘 𝐒𝐓𝐑𝐎𝐍𝐆 𝐒𝐈𝐃𝐄
📍 𝐔𝐬𝐞𝐫-𝐟𝐨𝐜𝐮𝐬𝐞𝐝 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: Anticipate real-world issues and catch what others miss.
📍 𝐄𝐟𝐟𝐞𝐜𝐭𝐢𝐯𝐞 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: Build frameworks that save time and reduce regression risks.
📍 𝐂𝐥𝐞𝐚𝐫 𝐑𝐞𝐩𝐨𝐫𝐭𝐢𝐧𝐠: Detailed bug logs with context, screenshots, and steps for faster fixes.
𝐓𝐄𝐂𝐇 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄
➔ Manual Testing: Functional, Regression, UI/UX, Security, Penetration, White/Black Box
➔ Automation & API Testing: BDD/TDD, SpecFlow, Cucumber, Selenium, Cypress, Appium,
➔ Postman, SoapUI, JBehave... and the list goes on!
➔ Performance Testing: JMeter, LoadRunner (I make sure your app runs fast under pressure!)
➔ Cross-Browser Testing: BrowserStack, Sauce Labs, AWS CloudFarm (Ensuring your app works everywhere!)
➔ Version Control: GitHub, GitLab, Bitbucket (Collaboration is key!)
➔ Project Management: Jira, Asana, Trello, Redmine (I keep things organized and running smoothly)
➔ CI/CD: Jenkins, Bamboo, Maven, Heroku (I make sure your code integrates seamlessly)
➔ Test Case Management: TestRail, qTest, PractiTest (I track it all so nothing gets missed)
𝐘𝐎𝐔𝐑 𝐐𝐀 𝐄𝐃𝐆𝐄
• Free initial consultation to align on goals
• Trial week to demonstrate testing approach
• QA tailored to real user experience
🔥 Every great project starts with the right testing - 𝐒𝐄𝐍𝐃 𝐌𝐄 𝐀 𝐌𝐄𝐒𝐒𝐀𝐆𝐄 and let’s turn yours into a 𝐦𝐚𝐬𝐭𝐞𝐫𝐩𝐢𝐞𝐜𝐞!
Use these key words to find me: Manual Testing, Automated Testing, Automation Test, Test Automation Framework, Test Case Design, Test Execution, Functional Testing, Unit Testing, End-to-End Testing, Exploratory Testing, Usability Testing, Compatibility Testing, Performance Testing, Load Testing, Security Testing, Smoke Testing, Sanity Testing, Regression Testing, Product Stability, Software QA, Software Testing, QA Engineering, .NET Stack, JavaScript, TypeScript, Next.js, React, Node.js, Selenium, Selenium WebDriver, Playwright, Cypress, Appium, Robot Framework, Page Object Model, POM, BDD, Cucumber, Gherkin, Mocha, Chai, Jest, TestNG, JUnit, API Testing, RESTful API, SOAP API, GraphQL, Swagger, Postman, JSON, YAML, Node.js Backend Testing, Database Testing, Desktop Application Testing, Mobile App Testing, Web Testing, Cross-Browser Testing, BrowserStack, ServiceNow, Atlassian Confluence, Jira, Trello, Asana, Git, GitHub, GitLab, Bitbucket, CI/CD Pipelines, Jenkins, Docker, Azure DevOps, Xcode, Android Studio, Visual Studio Code, Test Coverage, Test Strategy, Defect Lifecycle, Bug Tracking & Reports, Bug Reports, Annotated Screenshot, Screen Recording, Release Notes, Documentation Review, Continuous Testing, Shift-Left Testing, Risk-Based Testing, Quality Control, Requirements Analysis, Collaboration with Developers, Communication Skills, Email Communication, Time Management, Agile, Scrum, User Stories.
Vitalii B.
has worked
.
Associated with
Inforce.digital
$90K+
earned
$40/hr
100%
Job Success
$200K+ earned
Start of list.
End of list.
Senior Manual QA Tester and QA Lead
More than 10 years of experience specialized in functional, UX, UI testing, mobile, web testing, testcase writing and executing.
Effectively built and organized QA teams, developed and implemented testing strategies.
Managed multiple testing projects in parallel with tight deadlines.
Worked in position QA Lead in company WeDoQa on many projects for different clients. We have covered many type of testing, from web based application testing to mobile device testing, desktop application testing, cross-browser testing, functional testing, UX/UI testing....
Past 3 years I'm working in The Sole Supplier company as QA Analyst and Consultant and later become QA Team Lead as well.
Szabolcs V.
has worked
.
$8/hr
88%
Job Success
Available now
Start of list.
End of list.
🎁 100% Refund Guarantee if expectations are not met - no excuses.
Looking for a QA Engineer or an Best QA Tester who can find critical bugs before your users do?
You’re in the right place.
I’m a Senior QA Engineer & Manual QA Tester with 5+ years of experience, specializing in testing AI products, SaaS platforms, web applications, and mobile apps (iOS & Android).
I don’t just test - I test like a real user to ensure your product is stable, scalable, and production-ready.
🚀 What I Can Do For You
🔍 Manual QA Testing
✔ AI Product Testing
✔ Functional & UI Testing
✔ Mobile App Testing (iOS & Android)
✔ Regression Testing
✔ Smoke Testing
✔ Usability Testing
✔ Cross-Browser Testing
✔ SaaS Product Testing
✔ Database Testing
⚡ QA Automation Testing
✔ Playwright (Python & JavaScript)
✔ Cypress Automation
✔ Selenium + SpecFlow
✔ Appium (Mobile Automation)
💡 Why Clients Choose Me
⭐ Top Rated QA Tester (Top 10% on Upwork)
✔ Strong bug detection & root-cause analysis
✔ Clear, developer-friendly bug reports
✔ Focus on performance, UX & scalability
✔ Reliable & detail-oriented
🧠 My Testing Approach
I test applications based on real user behavior, not just test cases.
✔ Identify critical bugs before release
✔ Ensure smooth user experience
✔ Improve product quality & stability
✔ Help you launch with confidence
🌍 Industries Experience
SaaS | Fintech | Healthcare | E-commerce | Retail | Gaming | AI Products
📩 Let’s Work Together
Click 𝗜𝗡𝗩𝗜𝗧𝗘 or 𝗛𝗜𝗥𝗘, and I’ll help you deliver a bug-free, high-quality product.
AI QA Tester | Manual QA Tester | QA Engineer | QA Tester | Automation QA Engineer | Software Tester | SaaS QA Tester | AI Product Tester | Website QA Tester | Mobile App Tester | Playwright Tester | Cypress QA Engineer | Selenium Tester | Appium Tester
Haseeb Z.
has worked
.
Associated with
TechSided
$29/hr
100%
Job Success
$8K+ earned
Available now
Offers consultations
Start of list.
End of list.
🦣 7+ years as a Senior QA Engineer and QA Automation Engineer - 10,000+ automated tests written, 50,000+ QA testing cases designed, 100+ releases shipped, $500,000+ saved for clients through smart QA Automation. 🚀
Full-stack Automation QA professional and QA Tester who lives and breathes QA Automation, QA Testing, manual QA testing, QA consulting, QA process building, and QA team leadership. As your QA Automation Engineer and QA Tester, I own the entire quality lifecycle from idea to production. 🎯
Whether you're hiring your first QA Tester, need an Automation QA Lead to rebuild QA Automation from scratch, or want a senior QA Automation Engineer - I plug in fast and take 100% of quality off your plate.
🧠 My core strengths as a senior QA Tester & Automation QA expert
- 🔬 Manual QA Testing - 50,000+ QA testing cases designed across exploratory, functional, regression, smoke, UAT, accessibility, cross-browser QA testing. 3x more critical bugs found than average.
- ⚙️ QA Automation - 10,000+ QA automation tests on Web (Playwright, Cypress, Selenium), Mobile (Appium, WebdriverIO), API (REST Assured, Postman), Performance (JMeter, k6).
- 🏗️ Building QA processes from scratch - 8+ complete QA Automation functions built from zero: strategy, QA automation frameworks, CI/CD, metrics, QA Tester hiring.
- 🧭 QA Consulting - 15+ QA testing and QA automation audits, 40+ improvements per audit, QA testing costs cut 35-60%.
- 👥 QA Team Leadership - led 5+ teams of QA Testers and QA Automation Engineers, mentored 25+ to mid/senior level.
🚀 What you get from me as QA Tester / QA Automation Engineer
- 📉 Regression QA testing time cut 70-90% via QA Automation
- ⚙️ Custom QA Automation framework built in 2-3 weeks (or refactored to 99% stability)
- 🧪 100% manual QA testing coverage of critical paths where Automation QA doesn't pay off
- 🔌 200+ API QA Automation tests in the first month
- 📱 Mobile QA Automation covering iOS + Android in one suite
- 🚦 CI/CD quality gates - pipeline runs cut 50-80%
- 🛡️ Flakiness reduced from 20-30% to under 1%
- 💰 $50,000-$150,000/year saved per project
🎯 Long-term: 5-10x faster releases, 95%+ QA testing coverage, 80% less production defect leakage, QA Automation suites maintainable for 3+ years.
🔄 I optimize QA at every stage of SDLC
As senior QA Tester and QA Automation Engineer, I plug into all 6 stages: 📋 requirements (100% user stories reviewed by a QA Tester), 🎨 design (testability flagged 2-3 sprints early), 💻 development (shift-left QA testing, 100% PR review), 🧪 testing (full manual QA Testing + QA Automation), 🚀 release (CI/CD gates, smoke QA Automation), 📊 post-release (monitoring, retros). On average, 30+ QA testing improvements delivered in the first 90 days.
🛠️ I improve everything I touch - senior QA Tester mindset
- 🐌 Slow pipeline → QA Automation parallelized, build times cut 60-80%
- 🪲 Flaky QA Automation → flakiness from 20-30% to under 1%
- 📝 No QA testing docs → 100% coverage in Testomat/Allure
- 🔁 Manual repetitive work → automated, saving 10-20 hrs/week per engineer
- 📊 No metrics → full QA Automation dashboards in 2 weeks
🛠️ QA Automation & QA Testing stack
- Languages: Java, TypeScript, JavaScript
- Web QA Automation: Playwright, Cypress, Selenium, Selenide
- API QA Automation: REST Assured, Retrofit, Postman
- Mobile QA Automation: Appium, WebdriverIO
- Performance: JMeter, k6
- Security QA Testing: Burp Suite, OWASP ZAP
- CI/CD: GitHub Actions, GitLab CI, Jenkins
- DBs: MySQL, PostgreSQL, MariaDB
- Tools: Jira, Confluence, ClickUp, Testomat, Allure, Docker, Bash
📜 Certifications
- ISTQB Foundation Level 4.0
- Professional Scrum Master I
- Professional Agile Leadership I
- Security Testing OWASP TOP 10
- Security Testing API OWASP TOP 10
🌐 Domains as QA Tester & QA Automation Engineer
E-Commerce, Gambling, Healthcare, Food Delivery, Security, EdTech, Banking, FinTech, Travel, Social Networking - 10+ industries, 30+ projects.
📈 Real numbers from my QA Automation & QA Testing career
- 🚀 +40% product performance boost
- 📊 +30% team efficiency as QA Automation Lead
- ⏱️ Regression QA Testing cycles: 5 days → 4 hours
- 🐛 2,000+ critical bugs caught pre-release
- 💰 $500,000+ saved for clients via QA Automation
- 📜 10,000+ QA Automation tests written
- 📋 50,000+ QA testing cases designed
- 🎯 98% client satisfaction
🤝 How I join your team
First QA Tester • Embedded QA Automation Engineer • QA Consultant • Automation QA Lead
💬 Need a QA Tester for manual QA Testing, QA Automation Engineer to scale QA Automation, or Automation QA Lead to rebuild QA testing processes? Send a message - within 24 hours you'll get concrete next steps and a tailored QA Automation roadmap. ✅
Mykhailo M.
has worked
.
$17/hr
100%
Job Success
$10K+ earned
Available now
Start of list.
End of list.
🔥 𝐋𝐎𝐎𝐊𝐈𝐍𝐆 𝐅𝐎𝐑 𝐒𝐎𝐌𝐄𝐎𝐍𝐄 𝐖𝐇𝐎 𝐂𝐀𝐍 𝐂𝐀𝐓𝐂𝐇 𝐁𝐔𝐆𝐒 𝐁𝐄𝐅𝐎𝐑𝐄 𝐘𝐎𝐔𝐑 𝐔𝐒𝐄𝐑𝐒 𝐃𝐎? 𝐘𝐎𝐔'𝐕𝐄 𝐅𝐎𝐔𝐍𝐃 𝐓𝐇𝐄 𝐑𝐈𝐆𝐇𝐓 𝐏𝐄𝐑𝐒𝐎𝐍 🔥
QA Engineer | QA Analyst | QA Specialist | QA Manager | SQA | AQA
I’m a dedicated QA Engineer with 𝟱+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗵𝗮𝗻𝗱𝘀-𝗼𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 helping businesses deliver stable, user-friendly web and mobile applications. My work has protected products used by 𝟭,𝟬𝟬𝟬,𝟬𝟬𝟬+ 𝘂𝘀𝗲𝗿𝘀, reduced post-release incidents, and helped teams 𝘀𝗵𝗶𝗽 𝗳𝗮𝘀𝘁𝗲𝗿 𝘄𝗶𝘁𝗵 𝗰𝗼𝗻𝗳𝗶𝗱𝗲𝗻𝗰𝗲.
I’ve created 𝟯𝟬𝟬+ 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗲𝗱 𝘁𝗲𝘀𝘁 𝗰𝗮𝘀𝗲𝘀 that 𝗰𝘂𝘁 𝗿𝗲𝗴𝗿𝗲𝘀𝘀𝗶𝗼𝗻 𝘁𝗲𝘀𝘁𝗶𝗻𝗴 𝘁𝗶𝗺𝗲 𝗯𝘆 𝟳𝟬%, enabling development teams to release updates more frequently while minimizing production risks.
Whether I join a project from scratch or improve quality within an existing product, my focus is always the same: 𝗽𝗿𝗲𝘃𝗲𝗻𝘁 𝗰𝗼𝘀𝘁𝗹𝘆 𝗯𝘂𝗴𝘀, 𝗽𝗿𝗼𝘁𝗲𝗰𝘁 𝘆𝗼𝘂𝗿 𝘂𝘀𝗲𝗿𝘀, 𝗮𝗻𝗱 𝘀𝗮𝗳𝗲𝗴𝘂𝗮𝗿𝗱 𝘆𝗼𝘂𝗿 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗿𝗲𝗽𝘂𝘁𝗮𝘁𝗶𝗼𝗻. 📈
🔧 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐏𝐫𝐨𝐯𝐢𝐝𝐞:
𝐌𝐚𝐧𝐮𝐚𝐥 𝐓𝐞𝐬𝐭𝐢𝐧𝐠
• Functional, smoke, regression, exploratory, and UAT testing
• Mobile application testing across devices and platforms
• User experience and usability testing
𝐓𝐞𝐬𝐭 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧
• Cypress and Playwright implementation with Page Object Model
• Reusable test script development
• CI/CD pipeline integration (GitLab, Jenkins)
𝐐𝐀 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧 & 𝐒𝐭𝐫𝐚𝐭𝐞𝐠𝐲
• Comprehensive test plans and test case creation
• Detailed bug reporting and tracking
• Performance testing using JMeter
🏢 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 & 𝐃𝐨𝐦𝐚𝐢𝐧𝐬 𝐈’𝐯𝐞 𝐖𝐨𝐫𝐤𝐞𝐝 𝐖𝐢𝐭𝐡
• E-commerce platforms
• Real estate & property websites
• Healthcare applications
• SaaS & B2B platforms
• Marketing & content websites
• Startups & enterprise products with fast release cycles and complex workflows
𝐓𝐨𝐨𝐥𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 Jira, TestRail, Postman, Git, Trello, Miro, Bitbucket, Cypress, Playwright, JMeter
🏆 𝐌𝐲 𝐌𝐚𝐢𝐧 𝐀𝐜𝐡𝐢𝐞𝐯𝐞𝐦𝐞𝐧𝐭𝐬:
• My testing has protected applications serving over 1 million users from critical failures
• Delivered 300+ automated test cases that cut regression testing time by 70% for development teams
• Caught production-breaking bugs hours before major releases, saving clients from costly rollbacks and user complaints
• Built comprehensive QA processes and test frameworks that became the foundation for multiple teams
• Successfully delivered quality assurance for both fast-moving startups and enterprise-level companies, adapting quickly to different team structures, compliance requirements, and project scales
💬 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐭𝐨 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞:
• I catch edge cases and scenarios others often miss, ensuring comprehensive test coverage
• I ask the right questions, provide regular updates, and maintain transparent project communication
• I rapidly onboard to new projects, tools, and workflows without lengthy ramp-up periods
• I'm fast to adapt to new projects, tools, and workflows
📍𝐃𝐫𝐨𝐩 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐚𝐧𝐝 𝐥𝐞𝐭’𝐬 𝐭𝐚𝐥𝐤 𝐚𝐛𝐨𝐮𝐭 𝐡𝐨𝐰 𝐈 𝐜𝐚𝐧 𝐬𝐮𝐩𝐩𝐨𝐫𝐭 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭.
𝐊𝐞𝐲-𝐰𝐨𝐫𝐝𝐬:
Automated Testing, Automation Test, Test Case Design, Bug Reports, Manual Testing, Exploratory Testing, Functional Testing, Functional Testing, Bug Reports, Manual Testing, Software Testing, Mobile App Testing, Web Testing, Performance Testing, Product Stability, Screen Recording, Web Testing, Software QA, Bug Reports, Functional Testing, Test Case Design, Unit Testing, Exploratory Testing, Usability Testing, Unit Testing, Web Testing, Bug Reports, Functional Testing, Performance Testing, Manual Testing, Automation Test, Mobile App Testing, QA, Test Case Design, Manual Testing, Functional Testing, QA, Web Testing, Manual Testing, Bug Reports, Test Case Design, Usability Testing, Functional Testing, Automated Testing, Functional Testing, API Testing, AWS & GCP (Cloud Testing), Web Design, Amplitude, Communications, Annotated Screenshot, Apache Kafka, Graphic Design, Appium, Editing & Proofreading, Automated Testing, Quality Assurance, BrowserStack, Bug Reports, Performance Testing, Bug Tracking & Reports, Chrome Extension Testing, Usability Testing, Communications, Bug Reports, Content Writing, QA, Web Testing, Cypress, Desktop Application Testing, Functional Testing, E2E Testing, Mobile App Testing, Editing & Proofreading, Chrome Extension Testing, End-to-End Testing, End-to-End Testing, Functional Testing, QA Software & Testing Tools, GraphQL, Automated Testing, Graphic Design, End-to-End Testing, Integration Testing, JavaScript, Automated Testing, Jira, Load and Performance Testing, Web Testing, Manual Testing, Functional Testing, Mobile App Testing, Automated Testing, Performance Testing, Playwright, Postman, grps, Apache Kafka, QA Engineering, backend testing, Automated Testing
Tunisia
$15/hr
$2K+ earned
Start of list.
End of list.
Let's collaborate to deliver flawless product (Passionate about supporting startups and good ideas)
I bring quality and excellence to every project, building lasting client relationships through reliable QA experience.
Services I Provide:
* Manual & Automated Software Testing
* API, Performance and Load Testing
* Technical Documentation and User Guides
* Bug Reporting and Tracking
* Technical Support & WordPress Testing
How I Can Help:
* Analyze requirements, user stories and use cases
* Execute testing levels: Functional, UI, Smoke, Regression, Integration, Performance (Load, Stress, Scalability), & UAT
* Detect/report defects with annotations & daily updates
* Write test cases, scenarios, & summaries using Agile principles
* Optimize performance with tools like JMeter, LoadRunner, NeoLoad, AppDynamics, Dynatrace
* Handle cross-browser, web, mobile testing
* Use Jira, Mantis, Redmine for bug tracking
* Deliver root-cause analysis & end-to-end documentation
What I Offer:
* 3 years as QA Engineer in web/software/performance testing (including high-profile clients & large-scale simulations)
* 3 years in technical support with developer coordination
* Multi-tasking in fast-paced settings with strong problem-solving & communication skills
* Flexible, team-oriented approach with excellent time management
My goal: Make your product 100% user-friendly, error-free, & optimized—perfect for e-commerce, websites, or apps.
United Kingdom
$19/hr
100%
Job Success
$300K+ earned
Start of list.
End of list.
Shipping fast is easy. Shipping fast without breaking things? That's where we come in.
I'm Ajesh, co-founder of CalibreCode - a specialist QA and software testing agency with 14,000+ hours logged on Upwork, a 100% Job Success Score, and Top Rated Plus status. We've helped startups, scaleups, and enterprises across the UK, US, and India launch faster, reduce production bugs, and build release confidence.
What we do:
Manual & Automated Testing - thorough coverage across web, mobile, and enterprise platforms
Test Automation - Selenium, Cypress, Playwright, and CI/CD integration to catch issues before they reach users
Performance & Load Testing - validating that your app scales under real-world demand
End-to-End QA Consulting - embedded QA strategy from sprint planning to release sign-off
Clients don't just hire us to find bugs. They hire us because they want a QA partner who understands their product, integrates with their team, and takes ownership of quality, not just a checklist.
We've worked across SaaS, HR Tech, RegTech, EdTech, AR/VR, and event platforms. Whether you need a dedicated QA resource, a rapid audit before launch, or a long-term testing partner, we can be up and running within days.
Let's make sure your users never find the bugs we already caught.
$20/hr
100%
Job Success
$50K+ earned
Available now
Start of list.
End of list.
✅ "Expert QA Engineer with 6+ years of experience in Playwright, Selenium, Cypress, and API testing – helping startups and enterprises release bug-free products faster."
QA Engineer with 6+ years of expertise in both Automation and Manual Testing, delivering end-to-end quality assurance for web, mobile, and API applications. Proficient in designing scalable automation frameworks (Playwright, Selenium, Cypress.io, Appium) while excelling in manual testing to uncover edge cases and optimise user experience. Combines technical mastery (Java, JavaScript, TypeScript, CI/CD pipelines) with meticulous manual testing skills to accelerate releases, reduce defects, and align software with business goals in Agile environments.
𝐂𝐨𝐫𝐞 𝐂𝐨𝐦𝐩𝐞𝐭𝐞𝐧𝐜𝐢𝐞𝐬
𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐄𝐱𝐜𝐞𝐥𝐥𝐞𝐧𝐜𝐞:
Frameworks: Selenium/Java (TestNG/Maven), Cypress.io, Playwright, Appium for mobile.
Tools: RestAssured, Postman, JMeter, Gatling, TestRail, Jira.
CI/CD Integration: Jenkins, GitHub Actions, Azure DevOps.
Testing Types: API (REST), Performance, Cross-Browser (BrowserStack), Mobile (iOS/Android).
Results: Reduced regression cycles by 70%, achieved 95 %+ test coverage, and validated 500+ API endpoints for Fortune 500 clients.
𝐌𝐚𝐧𝐮𝐚𝐥 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞:
𝐓𝐞𝐬𝐭𝐢𝐧𝐠 𝐓𝐲𝐩𝐞𝐬: Functional, Regression, Smoke, Sanity, UAT, Usability, Exploratory.
𝐓𝐨𝐨𝐥𝐬: Postman (API), Jira, Trello, Confluence, BrowserStack.
𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧: Test plans, cases, defect reports with screenshots/logs.
𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐨𝐧: Agile/Scrum workflows, sprint planning, defect triaging.
𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥𝐬
Languages: Java, JavaScript, TypeScript, SQL, Node.js
Frontend/Backend Testing: HTML5, CSS3, Java, Node.js
Databases: MySQL, PostgreSQL
OS/Devices: Windows, macOS, Android/iOS (real devices & emulators)
𝐊𝐞𝐲 𝐀𝐜𝐡𝐢𝐞𝐯𝐞𝐦𝐞𝐧𝐭𝐬
𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐌𝐚𝐧𝐮𝐚𝐥 𝐓𝐞𝐬𝐭𝐢𝐧𝐠:
✅ Built Selenium/Java frameworks for enterprise web apps, slashing regression testing time by 70%.
✅ Intensive experience in creating test automation suite on Cypress, Playwright using JavaScript & Typescript.
✅ Automated mobile testing via Appium + BrowserStack, ensuring 100% real-device coverage.
✅ Integrated automated tests into CI/CD pipelines (Jenkins/GitHub Actions), enabling shift-left testing.
✅ Conducted load tests with JMeter, scaling SaaS platforms to handle 10k+ concurrent users.
✅ Spearheaded UI/UX testing for 20+ web/mobile apps, reducing post-release defects by 40%.
✅ Authored thousands of test cases and defect reports, improving team efficiency and reproducibility.
✅ Championed user-centric testing, enhancing product intuitiveness for client applications.
𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞❓
✅ Bridge automation efficiency with manual testing precision for comprehensive coverage.
✅ Cut costs via early defect detection and accelerated release cycles.
✅ Collaborate seamlessly with developers, PMs, and stakeholders to meet sprint goals.
✅ Uncover edge cases through exploratory testing and rigorous documentation.
✅ Prioritise real-world scenarios to ensure software stability and usability.
𝐋𝐞𝐭’𝐬 𝐂𝐨𝐧𝐧𝐞𝐜𝐭❗
Whether automating tests for rapid scalability or conducting hands-on manual testing to refine user experience, I ensure your software meets the highest standards. Let’s enhance quality, accelerate releases, and deliver exceptional ROI.
𝐂𝐨𝐧𝐭𝐚𝐜𝐭 𝐦𝐞 𝐭𝐨𝐝𝐚𝐲 𝐭𝐨 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭❗
Md. Mahbubur R.
has worked
.
Associated with
DevsDen
Dominican Republic
$18/hr
88%
Job Success
$30K+ earned
Available now
Start of list.
End of list.
I am a Senior QA Engineer with 10+ years of experience testing web applications, mobile apps, SaaS platforms, admin portals, dashboards, and e-commerce websites. I help teams release cleaner, more reliable products by finding functional issues, UX inconsistencies, edge cases, and regression risks before they reach production.
I have strong experience working with Jira, Zephyr, TestRail, Confluence, Slack, GitHub, BrowserStack, Chrome DevTools, Postman, SQL/Oracle, and modern QA workflows. I am comfortable testing from detailed specs, walkthroughs, Figma designs, Jira tickets, or even incomplete requirements where QA needs to bring structure and clarity.
My testing experience includes:
Functional testing
Regression testing
Smoke testing
Exploratory testing
Mobile testing on iOS and Android
Cross-browser testing
E-commerce and Shopify QA
SaaS dashboards and admin portals
Data-heavy workflows and reporting validation
API testing with Postman
Bug reporting with clear steps, screenshots, videos, and expected vs actual results
QA checklist creation and process improvement
I have tested key e-commerce flows such as PDP, PLP, cart, checkout, quick add, filters, search, account pages, promotions, sticky add-to-cart, product variants, pixels, consent/cookies, and responsive behavior across desktop and mobile.
What makes me different is that I do not only execute test cases. I think like a user, a business stakeholder, and a QA lead. I focus on what can break, what can confuse the user, what can affect conversion, and what can create production risk.
You can expect from me:
Clear and organized bug reports
Fast communication
Detailed evidence using Loom, screenshots, or screen recordings
Practical QA feedback
Strong attention to detail
Reliable delivery
Ability to work independently with minimal supervision
I am available for short-term QA tasks, long-term QA support, regression testing, release validation, SaaS testing, e-commerce QA, and mobile testing projects.
If you need someone who can quickly understand your product, test with precision, and communicate issues clearly, I can help.
Rafael G.
has worked
.